Ioannis received his Diploma in Electrical and Computer Engineering from National Technical University of Athens and his PhD in Optical Interconnects from University College London in 2008. In 2008-2009, he worked for Sharp Laboratories of Europe, investigating sub-wavelength diffractive films fabricated by nanoimprint lithography to improve the brightness, uniformity and power consumption of liquid crystal displays. He joined CERN-European Organisation for Nuclear Research in 2009, where he worked on optical fibre links for the distribution of timing-trigger and control signals in the Large Hadron Collider. He was appointed as a Lecturer in the Electronic and Electrical Engineering Department at UCL in 2011, where he founded the Photonic Innovations Lab.